SONICMAZE! Decorative Acoustic Panel Art: Sound Absorbing Lightweight & Micro-Perforated (3 x 3 panels, DIY fast installation) Perfect for corporate decor, retail spaces, areas with special acoustic requirements, or home decor Flexible magnetic attachment design makes it simple to re-arrange and rotate panels Incredibly lightweight: places minimum load on walls Combines eye-catching decoration for walls or ceilings, with superior high-tech sound absorption NRC 0.70 per ASTM C432, Ultra simple, 15-minute installation means low installation cost